This Toshiba PA5024U-1BRS Laptop Battery Pack is an 4400mAh 10.8V rechargeable, removable, Lithium Ion battery . If you are frequently on the road or in meetings and require non-interrupted computing time, keep an extra toshiba pa5024u-1brs battery pack handy and enjoy the true portability of your PC.PA5024U-1BRS is Brand New, just fresh out from factory with New Highest Quality Japanese Cells. we provide full one year warranty and 30-day money-back policy on every product we sell.